Agronomy

Factors that determine crop yield. Detailed discussion of agronomic factors directly or closely related to increasing crop yield. Examples; crop growth duration, length of the grain filling period, leaf area index and duration, defoliation, harvest index, heterosis, tillering potential, prolificacy, tuber initiation and bulking, tolerance to stresses especially drought and waterlogging, resistant cultivars, lodging, flower and pod abscission, shattering. Cropping systems.